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BUSINESS ACQUISITIONS - Narrative (Details) $ in Thousands	3 Months Ended		6 Months Ended
BUSINESS ACQUISITIONS - Narrative (Details) $ in Thousands	Jun. 30, 2024 USD ($)	Mar. 31, 2024 business_acquired	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Business Acquisition [Line Items]
Number of acquisitions \| business_acquired		4
Acquisition related costs	$ 0
Goodwill	426,821		$ 426,821	$ 343,991
Service Centers
Business Acquisition [Line Items]
Goodwill	63,000		63,000
Innovative Pumping Solutions
Business Acquisition [Line Items]
Goodwill	20,300		20,300
Acquisitions 2024
Business Acquisition [Line Items]
Cash	2,500		2,500
Goodwill	83,299		83,299
Purchased Intangible Assets	31,095		$ 31,095
Acquisitions 2024 \| Non-compete agreements
Business Acquisition [Line Items]
Amortization period of acquired intangible assets (in years)			5 years
Purchased Intangible Assets	1,900		$ 1,900
Acquisitions 2024 \| Trade names
Business Acquisition [Line Items]
Amortization period of acquired intangible assets (in years)			10 years
Purchased Intangible Assets	3,600		$ 3,600
Acquisitions 2024 \| Customer relationships
Business Acquisition [Line Items]
Amortization period of acquired intangible assets (in years)			8 years
Purchased Intangible Assets	$ 25,600		$ 25,600